--- a/python/moving.py	Mon Dec 21 15:16:33 2015 -0500
+++ b/python/moving.py	Thu Jan 14 11:44:39 2016 -0500
@@ -1560,15 +1560,19 @@
 # Annotations
 ##################
 
-class BBAnnotation(MovingObject):
-    '''Class for a series of ground truth annotations using bounding boxes
-    Its center is the center of the containing shape
+class BBMovingObject(MovingObject):
+    '''Class for a moving object represented as a bounding box
+    used for series of ground truth annotations using bounding boxes
+     and for the output of Urban Tracker http://www.jpjodoin.com/urbantracker/
 
     By default in image space
+
+    Its center is the center of the box (generalize to other shapes?) 
+    (computed after projecting if homography available)
     '''
 
     def __init__(self, num = None, timeInterval = None, topLeftPositions = None, bottomRightPositions = None, userType = userType2Num['unknown']):
-        super(BBAnnotation, self).__init__(num, timeInterval, userType = userType)
+        super(BBMovingObject, self).__init__(num, timeInterval, userType = userType)
         self.topLeftPositions = topLeftPositions.getPositions()
         self.bottomRightPositions = bottomRightPositions.getPositions()
 
@@ -1595,7 +1599,7 @@
     Keni, Bernardin, and Stiefelhagen Rainer. "Evaluating multiple object tracking performance: the CLEAR MOT metrics." EURASIP Journal on Image and Video Processing 2008 (2008)
 
     objects and annotations are supposed to in the same space
-    current implementation is BBAnnotations (bounding boxes)
+    current implementation is BBMovingObject (bounding boxes)
     mathingDistance is threshold on matching between annotation and object
 
     TO: tracker output (objects)